3pcs DIY High Fidelity Deaf Hearing Aids Audio Amplifier Kit Digital Amplifier Board Module

New

20 available

R372.00

Add to watchlist Watch

Shipping

R35.00 Standard shipping using one of our trusted couriers applies to most areas in South Africa. Some areas may attract a R30.00 surcharge. This will be calculated at checkout if applicable.
Check my rate

The seller has indicated that they will usually have this item ready to ship within 12 business days. Shipping time depends on your delivery address. The most accurate delivery time will be calculated at checkout, but in general, the following shipping times apply:

Standard Delivery

Main centres:	1-3 business days
Regional areas:	3-4 business days
Remote areas:	3-5 business days

Seller

szulou3780

92.82 % Positive ratings

Buyer protection

How you're covered

Returns

Replacement Guarantee: 7 Days: We stand by this guarantee

Get it now, pay later

Product details

Condition

New

Location

International

Bob Shop ID

648352833

Description: Hearing aids are a kind of sound enhancement products to help deaf people or elderly people; students can also use them as reading aids to amplify their voices when reciting texts in English, which helps to concentrate.
Now our store is introducing a set of hearing aids made of discrete components, which is suitable for students majoring in electronics to study, research and school teaching and training.
Although the circuit is simple, but due to the addition of a negative feedback circuit, and the selection of a high-sensitivity electret microphone, making the sound loud and bright, high fidelity, can be heard within 10 meters.
As long as the correct welding according to the diagram, connected to the 3V button battery, plug in headphones (mono or dual channel headphones can be), the switch to the on position, you can normally use.
PCB board size: 3.1 x 4.6 CM PCB sheet: FR-4 A-grade fiberglass panel Working voltage: 3V Package Included:

3 xDIY High Fidelity Deaf Hearing Aids Audio Amplifier Kit